In this rambling, historic Roma Norte town house, two brothers and business partners with a passion for collecting one-of-a-kind historical memorabilia and antiques sell their treasures to the public. Just walking through each room is great fun—more so, really, than touring some of the city's somberly baroque house-museums. You'll find expensive and rare items (a 1790s map of the Americas, a 1930s oak credenza) along with a number of smaller and more affordable pieces, including model ships, vintage valises, fine books, and framed artwork.