Mega-mansions continue to pile up in Los Angeles.

It started in 2014 and 2015, when a couple of high-profile, high-price-tag sales to foreign buyers prompted a flurry of construction of massive homes priced at $20 million or more, Katherine Clarke reported for The Wall Street Journal.

Today, about 50 ultra-high-end spec houses are being developed in posh Los Angeles neighborhoods such as Beverly Hills, Bel-Air, and Brentwood, and there aren't enough ultra-wealthy buyers wanting to buy them.

To get them off the market, real-estate brokers are resorting to increasingly inventive tactics to get them off the market, Business Insider's Hillary Hoffower recently reported.

Here are some of the ways they're trying to sell these massive mansions, from offering $100 million price cuts to throwing lavish parties.