Ren/RI in Minneapolis (at the Depot), aloft/Westin at SFO, Marriott/Courtyard in Center City Philadelphia, Marriott/Westin in Boston across from Prudential Center (also connected to a Sheraton on the other side of Prudentail Center), Marriott (Marquis?)/Sheraton in San Diego (near convention hall along the water) are some examples in the USA are examples of some hotels that are connected or share facilities. The W and Westin in Atlanta Buckhead are next to each other but seem to be separate as are a Marriott and something else (Westin?) at ATL on the little train line that goes to the rental car place or the Sheraton and Westin (???) convention hotels in downtown Seattle.

Overseas we have the Sheraton/LC in Buenos Aires and the Pine Cliffs resort development in southern Portugal. In the Denpasar area of Bali, the Sheraton and Laguna (LC) are next to each other but seem to be separate.