It's about half as big as The Great Banyan Tree
In other words, 705 squares is 0.455 times the size of The Great Banyan Tree, and the size of The Great Banyan Tree is 2.2 times that amount.(a.k.a. The Great Banyan, a.k.a. Ficus benghalensis) (Acharya Jagadish Chandra Bose Indian Botanic Garden, Howrah, West Bengal, India)
The Great Banyan Tree is a single tree in the Indian Botanic Garden in West Bengal with aerial roots covering a total area of about 1,550 squares. While its exact age is unknown, the tree has been noted in guidebooks for over 200 years.
It's about two-fifths as big as The Biltmore Estate
In other words, 705 squares is 0.402 times the size of The Biltmore Estate, and the size of The Biltmore Estate is 2.49 times that amount.(Asheville, North Carolina) (house only)
The main house of Biltmore Estate covers 1,750 squares and contains 250 rooms. The fifty-six auxiliary buildings of the estate are interconnected through the nearly 71 km of roads on the Biltmore grounds.
It's about four-and-a-half times as big as a Hockey rink
In other words, 705 squares is 4.31799856 times the size of a Hockey rink, and the size of a Hockey rink is 0.231588776 times that amount.(per NHL specification)
Per National Hockey League Official Rules, a hockey rink should measure 60.96 m long by 25.908 m wide with a corner arc radius of 8.5344 m, for a total area of about 163.2700870 squares. Ice hockey is believed to have developed from field hockey after players began holding games on ice rinks, which had been traditionally used for the sport of curling.
It's about one-fifth as big as The Lincoln Memorial Reflecting Pool
In other words, 705 squares is 0.208 times the size of The Lincoln Memorial Reflecting Pool, and the size of The Lincoln Memorial Reflecting Pool is 4.81 times that amount.(Washington, D.C.) (pool surface area)
The Lincoln Memorial Reflecting Pool has a water surface area of 3,390 squares. The Pool has a sloping bottom and extends to 80 cm (30 in) in depth at its center.
It's about one-fifth as big as The Principality Stadium
In other words, 705 squares is 0.2 times the size of The Principality Stadium, and the size of The Principality Stadium is 5 times that amount.(a.k.a. Stadiwm Principality, f.k.a. Millennium Stadium, f.k.a. Stadiwm y Mileniwm) (Cardiff, Wales, United Kingdom) (total footprint)
The 70,000-person-plus capacity stadium of Cardiff, Principality Stadium has a total footprint of 4,000 squares. Over 40,000 tonnes of concrete and steel during the construction of the stadium.
It's about five-and-a-half times as big as Manchester Cathedral
In other words, 705 squares is 5.291 times the size of Manchester Cathedral, and the size of Manchester Cathedral is 0.189 times that amount.(a.k.a. Cathedral and Collegiate Church of St Mary, St Denys and St George) (Manchester, England, United Kingdom) (total interior area of Nave, Chapel, Library, Chapter House, and Rectory)
Manchester Cathedral includes a total interior area of 133.30 squares between the Nave, Chapel, Library, Chapter House, and Rectory. The height of the Cathedral's bell tower is 41.1 m.
It's about five-and-a-half times as big as Fort Knox
In other words, 705 squares is 5.55 times the size of Fort Knox, and the size of Fort Knox is 0.18 times that amount.(a.k.a. the United States Bullion Depository, a.k.a. "Gold Vault") (Kentucky)
The United States Bullion Depository, commonly referred to by the metonym "Fort Knox" (in spite of the fact that the Depository is not located on the Fort proper), measures 32.0 m (105 ft) by 36.9 m (121 ft), for a total area of about 127 squares. The Depository is most famous for housing the largest portion of the national gold reserve, but has also temporarily housed the original US Declaration of Independence, an original copy of the US Constitution, and other important documents, kept there for safe keeping during World War II.