Allen's Landing is sometimes called "Houston's Plymouth Rock" and with good reason: It's the spot where the city's founders, Augustus and John Kirby Allen, set foot on the land that would become Houston.

Allen's Landing became the original site of the Port of Houston in 1840 and for many years was the center of trade in the city. The site fell into decline through the 20th century, but is now finding new life as link in the system of parks being developed along Buffalo Bayou's banks.

This tour tells the history of Allen's Landing and looks at historic buildings nearby, including turn-of-the-century warehouses, a former neighborhood saloon with a checkered past and the restored Willow Street Pump Station, the centerpiece of Houston's first sewer system.

Ticket sales start at 5:30 p.m. onsite. The tour will depart at 6 p.m.